/**
 * Licensed to Neo Technology under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Neo Technology licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.neo4j.neoclipse.property;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.ui.views.properties.IPropertyDescriptor;
import org.neo4j.graphdb.Relationship;

/**
 * Resolves the properties for a Neo relationship.
 * @author Peter H&auml;nsgen
 */
public class RelationshipPropertySource extends PropertySource
{
    public static final String RELATIONSHIP_CATEGORY = "Relationship";
    public static final String RELATIONSHIP_TYPE_KEY = "neoclipse.type";
    private static final String RELATIONSHIP_ID = "Id";
    private static final String RELATIONSHIP_TYPE = "Type";

    public RelationshipPropertySource( final Relationship rs,
        final NeoPropertySheetPage propertySheet )
    {
        super( rs, propertySheet );
    }

    @Override
    protected List<IPropertyDescriptor> getHeadPropertyDescriptors()
    {
        List<IPropertyDescriptor> descs = new ArrayList<IPropertyDescriptor>();
        descs.add( new PropertyDescriptor( ID_KEY, RELATIONSHIP_ID,
            RELATIONSHIP_CATEGORY ) );
        descs.add( new PropertyDescriptor( RELATIONSHIP_TYPE_KEY,
            RELATIONSHIP_TYPE, RELATIONSHIP_CATEGORY ) );
        return descs;
    }

    @Override
    protected Object getValue( final Object id )
    {
        if ( id == ID_KEY )
        {
            return ((Relationship) container).getId();
        }
        else if ( id == RELATIONSHIP_TYPE_KEY )
        {
            return ((Relationship) container).getType().name();
        }
        else
        {
            return super.getValue( id );
        }
    }

    @Override
    protected boolean isSet( final Object id )
    {
        if ( id == ID_KEY )
        {
            return true;
        }
        else if ( id == RELATIONSHIP_TYPE_KEY )
        {
            return true;
        }
        else
        {
            return super.isSet( id );
        }
    }
}
